<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>基本选择器</title>
    <link rel="stylesheet" href="css/05-基本选择器.css"/>
</head>
<body>
    <div>元素选择器</div>
    <div>元素选择器</div>

    <div class="cla">类选择器</div>
    <div class="cla">类选择器</div>

    <div id="id1.1">id选择器</div>
    <div id="id1.2">id选择器</div>
</body>
</html>